Code Switching in our lessons

[shamshoque]

Dear Colleagues,
We are currently working on a research project. We are trying to find out how much of our lesson-time ( 10%, 20%. 30%, 40%, 50% etc.) we spend in explaining the contents of our lessons in Bengali. What are the reasons that we have to use L1 (mother tongue) in our lessons?
Thank you for your sincere cooperation and honest opinion.
Shams Hoque
Associate Professor in English
DIU

[710001113]

thanks